T491E687M006AS Capacitors

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Tantalum capacitors are a type of capacitor that offer various benefits compared to alternative types. Among these benefits are small size, high volumetric efficiency, and high multiplicative capacitance. The T491E687M006AS is a tantalum capacitor that offer these and other benefits. This article will discuss the application field and working principle of the T491E687M006AS.

The T491E687M006AS is a surface-mount, tantalum capacitor that can provide up to 6.3 volts of direct current. The device measures just 3.2 x 2.2 x 1.3 mm and can offer a capacitance of 6.8 µF. In addition, these capacitors are highly temperature stable, with a rated temperature range of -55°C to +125°C. Thanks to its small size and capacitance, the T491E687M006AS is well-suited for use in applications such as voltage regulators, bypass / decoupling circuits, and switching power supplies.

The working principle behind the T491E687M006AS is largely the same as with other tantalum capacitors. The capacitor contains two electrodes – one of which is a cathode and the other an anode – that are separated by a dielectric material. When a voltage is applied across the terminals, an electric field forms across the dielectric, causing electrons to be drawn to the anode and pushing positive ions away from it. This phenomenon creates an internal electric field between the electrodes, resulting in a charge buildup.

The capacitor then functions as a conductor, allowing electric current to flow between the electrodes until the charge is discharged. The capacitance of the device is determined by its physical design, and the dielectric material used in the T491E687M006AS is niobium pentoxide, which provides excellent stability over time and temperature.

In conclusion, the T491E687M006AS is a small, surface-mount tantalum capacitor that is well-suited for use in voltage regulation and bypass / decoupling circuits. The device measures just 3.2 x 2.2 x 1.3 mm and can provide a capacitance of up to 6.8 µF. The working principle of the device is based on the buildup of an electric field between two electrodes separated by a dielectric material, with niobium pentoxide being used for the dielectric in the T491E687M006AS.

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